FEATURE: allow user to override watched_precedence_over_muted setting (#22340)

Recently, site setting watched_precedence_over_muted was introduced - https://github.com/discourse/discourse/pull/22252

In this PR, we are allowing users to override it. The option is only displayed when the user has watched categories and muted tags, or vice versa.

spec/lib/topic_query_spec.rb

@@ -2160,5 +2160,18 @@ RSpec.describe TopicQuery do
         expect(query.topics.map(&:id)).to contain_exactly(topic.id)
       end
     end
+
+    context "when disabled but overridden by user" do
+      it "returns topics even if category or tag is muted but another tag or category is watched" do
+        SiteSetting.watched_precedence_over_muted = false
+        user.user_option.update!(watched_precedence_over_muted: true)
+        query = TopicQuery.new(user).list_latest
+        expect(query.topics.map(&:id)).to contain_exactly(
+          topic.id,
+          topic_in_watched_category_and_muted_tag.id,
+          topic_in_muted_category_and_watched_tag.id,
+        )
+      end
+    end
   end
 end